baber/WOPTO huggingface dataset:
Patent GB-1152276-A (GB)
Title: Improvements in or relating to Frequency Changing arrangements
Inventor: WILSON BERNARD
IPC: H03D9/06
Filed: 1967-03-15
Abstract: 1,152,276. Radio signalling. GENERAL ELECTRIC & ENGLISH ELECTRIC COMPANIES Ltd. 4 March, 1968 [15 March, 1967], No. 12201/67. Headings H3T and H4L. A frequency changing arrangement for use at a radio repeater station comprises first and second frequency-changers 3, 7, respectively, connected successively in the signal path, a source, i.e. oscillator 12 and frequency multiplier 13 of high-frequency oscillatory signals, means to apply to the first frequency-changer 3 a first local oscillation signal supplied by or derived from said source, and delay means 19 to apply to the second frequency-changer 7 a second local oscillation signal supplied by or derived from said source; the time taken for unwanted signal components from the highfrequency source 12, 13 to reach the second frequency changer 7 by way of the first frequency changer 3 is approximately equal to the time taken for said signal components to reach the second frequency-changer 7 by way of the delay means 19, the second frequency-changer 7 being arranged so that such unwanted signal components reaching it simultaneously over the two paths tend to cancel one another. The arrangement cancels out noise generated in the highfrequency local oscillation generator 12, 13; as shown, the local oscillation frequency applied to the first frequency-changer 3 differs from that applied to the second frequency-changer 7, the oscillations applied to the former being derived from a filter 17 and mixer 16 which is fed from the high-frequency local oscillation source 12, 13 and also with oscillations from a source of considerably lower frequency, comprising oscillator 14 and frequency multiplier 15. The delay means 19 may comprise a suitable length of coiled-up coaxial cable (Fig. 2, not shown), and a single oscillator may be used instead of the two oscillators 12, 14. The arrangement is stated to be particularly useful with semi-conductor oscillation sources.
Patent GB-1059766-A (GB)
Title: Fluid pressure chambers separated by a diaphragm
IPC: G05D16/06
Filed: 1964-03-23
Abstract: 1,059,766. Pressure gauge diaphragms. MASCfflNENFABRIK BURCKHARDT A. G. March 23, 1964 [March 29, 1963J, No. 12224/64. Heading G1L. A diaphragm separating two pressure chambers comprises outer and inner members 1, 2 of hard material such as steel and an intermediate member 3 of elastic material such as rubber pressed between the members 1, 2 or bonded thereto.
Patent GB-582230-A (GB)
Title: Improvements in or relating to radio navigational systems
IPC: G01S1/02
Filed: 1944-06-27
Abstract: 582,230. Radio navigation. STANDARD TELEPHONES & CABLES, Ltd., and WILLIAMS, H. P. June 27, 1944, No. 12238. [Class 40 (v)] Relates to aircraft receiving equipment for simultaneously indicating on a cathode-ray tube deviations from a radio glide path and approach path, each modulated by tone frequencies. According to the invention, separate glide path and approach path receivers are provided and a time-base voltage, biassing voltage, and control voltage depending on the deviation from the path is derived from each receiver and alternately applied through a commutator to the cathode-ray tube to produce two linear traces at right angles which are deflected perpendicularly by the corresponding control voltages. In Fig. 1, the glide path receiver 1 comprises a discriminator 3 for producing the control voltages and circuits 5 and 7 for producing from the received signals time-base sweep and biassing voltages for the cathode-ray tube 9 so that a transmission fault reduces the trace to a point or causes it to disappear as described in Specification 579,090. The approach path receiver 2 comprises corresponding circuits 4, 6 and 8 and the three outputs from each receiver are fed through the rotary commutators 10, 11 and 12 so that for one half-cycle the receiver 1 produces a horizontal trace which is deflected vertically by the glide path control voltages and in the next half-cycle the receiver 2 produces a vertical trace which is deflected vertically by the approach path control voltages to produce traces 28, 29, Fig. 2, in which the on-course position is shown by the dotted lines. The rotary commutators may be replaced by periodically operated relays in which case the oscillograph screen should have an after-glow to eliminate flicker. Specification 496,521, [Group XXXVIII], also is referred to.
Patent GB-460169-A (GB)
Title: Improvements in aircraft gun mountings and the like
IPC: F41A27/30
Filed: 1936-04-29
Abstract: 460,169. Aircraft gun mountings. CESKOSLOVENSKA ZBROJOVKA AKCIOVA SPOLECNOST BRNO. April 29, 1936, No. 12244. Convention date, April 29, 1935. [Class 92 (i)] Relates to mountings comprising a system of levers on one end of which the firearm is carried and at the other end the weight of the gunner acts to position and balance the firearm. According to the invention, a seat 16 is slidably mounted on one lever 7 of the system in such a manner that the place 6 on which the gunner stands remains unchanged while the firearm is being elevated. The firearm 9 is carried by a lever 8, and the levers 7, 8 are geared by sectors 11, 10 to a pinion 12, the pivots 15, 13 of the levers and the spindle 14 of the pinion being all mounted on the ring 1, which rotates on the fixed ring 3 for training the firearm. The seat 16 is attached to the end of a cord 17 wound on a drum fast with the pinion 12, so that when the gun is being depressed the cord is wound up against the tension of a spring 22 and gradually draws the seat along the lever 7. The levers 7, 8 are forked and the sectors, pinion, and drum are duplicated at the forked ends.
Patent GB-785197-A (GB)
Title: Improvements relating to printing machines
IPC: B41F27/12
Filed: 1956-04-23
Abstract: 785,197. Printing-machines. LEVEY CO., Inc., F. H. April 23, 1956 [May 2, 1955], No. 12372/56. Class 100(2) Impression-cylinders. One or more thin metal plates are secured to an impression cylinder in a rotary web-fed printing press, the cylinder having one or more thin axial slots leading to recesses, in each of which is pivotally mounted intermediate their ends a pair of jaws co-extensive in length with the cylinder and tapered to a rigid edge at their outer ends, which are just below the surface of the cylinder, the jaws each having means for holding an end of a plate, and means being provided accessible from an end of the cylinder for forcing apart the inner ends of the jaws. Jaws 9 are pivoted on pins 11 extending into each end thereof and supported by the cylinder bearer-rings, and their tapered outer ends extend into a slot 7, e.g. ¢ inch wide, 0.03 inch short of the cylinder periphery 3. Plates 8 pre-bent at their ends are passed over the jaws and secured, by means of holes in metal strips 18 welded to the plate edges, to locking posts 21 spaced along the jaws. Each post has an eccentrically mounted extension with a lip 23, and is movable to locking or release position by a gear 24, the gears 24 in each jaw being operated by a common rack 25 moved axially by rotation of a rod 26 by means of a wrench. Turnbuckles 15 are rotated to force the inner ends of the jaws away from each other so as to tension the plates and leave a minimum gap interrupting the cylinder surface.
Patent GB-400657-A (GB)
Title: Improvements in or relating to a combined pipe coupling and valve
IPC: F16L37/407
Filed: 1932-04-29
Abstract: 400,657. Pipe couplings. MAIN, Ltd., R. & A., WORTLEY, G. W., and ROBINSON, H. N., 48, Grosvenor Gardens, London. April 29, 1932, No. 12392. [Class 99 (i).] A coupling for a gas or other pipe comprises a supply conduit closed automatically by a valve therein, a delivery conduit, and means operated by engagement of the conduits, for opening the valve automatically, the coupling being provided with means such as a ring of circular cross section which is rolled between opposed surfaces of the conduits when the coupling is connected or disconnected to prevent leakage therefrom. A supply pipe 13 leads into a cylindrical chamber 14 wherein a spring 19 normally presses a ball 17 against an internal flange 16 of the chamber making a gas-tight joint. The chamber extends beyond the flange and is formed at its end with a stepped conical surface 32 leading to a semicircular groove 31. The delivery pipe comprises a spigot 22 having a reduced end 33 adapted to pass the flange 16 and displace the ball 17, the end being shouldered or stepped up to a ribbed conical face 37 having near its narrower end a groove 36 in which a packing ring 21 of circular section is disposed. On applying the spigot 22 to the chamber 14, the packing ring 21 rolls up the conical face 37 making a gas-tight joint before the end of the spigot displaces the ball 17. The spigot is manipulated by a sleeve 38 rotatable on it and provided with internal ribs which pass along grooves in a collar 41 on the outer surface of the chamber 14, rotation of the sleeve then locking the coupling.
Patent GB-1093086-A (GB)
Title: Process for the production of 3,4-epoxytetramethylene sulphone
IPC: C07D495/04
Filed: 1965-03-24
Abstract: Halogen-containing polymers, e.g. polyvinyl chloride, are stabilized by the addition of 3,4-epoxytetramethylene sulphone (see Division C2).ALSO:3,4-Epoxytetramethylene sulphone is obtained by reacting butadiene sulphone with peracetic acid at a temperature of 30 DEG  to 80 DEG  C. in water or an organic solvent.  The reaction is suitably effected by adding peracetic acid, preferably 20 to 70% by weight, to butadiene sulphone in the solvent and heating for a period of 5 to about 150 hours.  The reaction may also be effected with peracetic acid prepared in situ from acetic acid and hydrogen peroxide, when the butadiene sulphone is preferably dissolved in acetic acid and hydrogen peroxide of any concentration is introduced at the desired temperature, the molar ratio of hydrogen peroxide to butadiene sulphone preferably being at least one.  Suitable solvents are water, alcohols such as methanol, ethanol, isopropanol and tertiary butanol, ethers such as dioxane, ketones such as acetone, esters such as methyl and ethyl acetate, carboxylic acids such as acetic and propionic acids, aliphatic, cycloaliphatic and aromatic hydrocarbons such as cyclohexane, benzene, toluene, ethylbenzene and xylene and chlorinated hydrocarbons such as methylene chloride and chloroform. Acetic acid, which may be used for the production of peracetic acid in situ, may be recovered from the reaction mixture by distillation of the mother liquor or by direct azeotropic distillation of the mother liquor under reduced pressure, e.g. with aromatic hydrocarbons such as xylene and ethylbenzene. The 3,4-epoxytetramethylene sulphone may be used (i) to stabilize halogencontaining polymers, e.g. polyvinyl chloride; (ii) as a reactive additive to epoxide and other resins; and (iii) as a monomeric material in the production of polymers.
Patent GB-695953-A (GB)
Title: Improved means for delivering bobbins to the spindles of a textile twisting, doubling or spinning frame
Inventor: BERRYMAN JOHN
IPC: D01H9/18
Filed: 1950-05-18
Abstract: 695,953. Doffing arrangements for spinning and like machines. BRITISH COTTON INDUSTRY RESEARCH ASSOCIATION. May 17, 1951 [May 18, 1950], No 12404/50. Classes 120(ii) and 120(iii) Bobbins for delivery to the spindles of a spinning or like frame are horizontally stacked in and delivered from a magazine in groups, the delivered bobbins thereafter being swung through an arcuate path to a vertical position over the spindles, from which they are transferred to the spindles. The apparatus has particular application in a domng carriage as described in Specification 597,887. The magazine 62 preferably is of sheet metal construction, is open at the top and bottom and has handles 66 on the end panels, to facilitate removal and replacement Loading of the magazine with empty bobbins may be ejected on a bench or elsewhere for subsequent application to a doffing carriage. Attached to the front and rear walls are channel members 67, 68 forming guides for locating stacks of bobbins 32 at half-spindle spacing. The bottom of the magazine incorporates a slotted bottom plate 69, the slots being at spindle spacing, and above plate 69 a slotted shutter 72 is slidably mounted. A pin 50 fixed to. the sliding shutter 72 enters into a notch in the forked upper end of a bell-crank lever 48a, when the magazine 62 is placed on the doffing. carriage. Actuation of the lever 48a by means of a cam on a shaft 16 causes a sidewavs movement of the shutter 72 and allows bobbins 32 from alternate stacks to drop through the slots in the shutter into positions where they are supported by solid portions of the plate 69. On the return movement of the shutter, these bobbins fall through the apertures of plate 69 and are replaced on the shutter 72 by further bobbins from the stacks. From the plate 69 the bobbins, fall on to the base plate 26 of a bobbin receiver pivoted at 25a and provided with side plates 25 to which arms 28' are rigidly attached A link 29 connects arms 28 with arms 24. on the shaft 16 which is rocked by a cam 21 through levers 18, 19. The rocking motion of shaft 16 swings the receiver through approximately 90 degrees so that the bobbins 32 on the base plate 26 are held vertically above the spindles 30 by a bar 31 that is tripped at the appropriate time by a cam 43 operating through levers 36, 37, 39, 40 to allow the bobbins 32 to fall on to the spindles 30.
Patent GB-1180542-A (GB)
Title: Blind Fastener
IPC: F16B19/10
Filed: 1968-03-14
Abstract: 1,180,542. Screw-sockets. VSI CORP. 14 March, 1968 [30 March, 1967], No. 12424/68. Heading F2H. An integrally formed one-piece blind fastener comprises a cylindrical body 10 with an axially disposed cylindrical bore 34, a head 18 integral with the body at one end having a greater radial dimension than the body and the bore extending therethrough, an internally threaded nut 14 integrally connected to the end of the body opposite the head by a breaking neck 16 and a plurality of circumferentially disposed, spacedapart lobes 20, tapered in the direction of the nut from the head, the lobes having smooth and transversely convexly curved external surfaces so as to elastically deform the material into which the fastener is set. The nut has a cylindrical portion 26 whose outside diameter is the same as the body 10 and an end section 36 of reduced diameter. The cylindrical portion 26 may be serrated to prevent the nut rotating when a threaded member such as a bolt is threaded into the threaded bore to break the neck and pull the nut inside the bore 34 of the body 10.
Patent GB-855548-A (GB)
Title: Synthetic materials reinforced with fibres
IPC: D06M15/55
Filed: 1957-04-08
Abstract: Glass or mineral fibres having an alkali content of 5-20% are coated with a hardenable compound containing epoxy groups. Compounds specified are reaction products of epichlorhydrin with monohydric or polyhydric phenols or mono- or -poly-thiophenols or with fusible aldehyde condensation products, monohydric or polyhydric alcohols or mono- or polythio-alcohols or with compounds containing amino, amide, hydrazide or sulphonamide groups or salts of mono- or polycarboxylic aliphatic, cyclo-aliphatic or aromatic acids; reaction products of glycide or derivatives thereof with the chlorides of monopolybasic organic acids; reaction products of peracids with butadiene, vinylcyclohexane or terpenes or with unsaturated carboxylic acids, alcohols or esters; allyl glycide ether and 1, 3 epoxides and epoxypolyesters of high M.W.  Compounds may be applied which form epoxy groups in situ or during the process of application. The epoxy compounds may be applied in solution in chlorinated hydrocarbons, ketones esters or ethers or as aqueous emulsions. Hardeners may be included.  Vinyl trichlorosilane or methacrylato chromic chloride may be applied together with the epoxy compound or before or afterwards.  The fibres treated may be continuous filaments or staple or in the form of webs, strips, bands, mats, yarns or fabrics.  The treated fibres may be used for the reinforcement of synthetic resins, e.g. of phenol, melamine or urea-aldehyde resins or unsaturated polyester resins.
Patent GB-212783-A (GB)
Title: Improvements in furnaces of steam boilers
IPC: F23M3/00
Filed: 1923-05-10
Abstract: 212,783. O'Loughlin, J. A. May 10, 1923. Fire - bridges; baffles; smoke, consuming. - One or more chambers B. Fig. 1, are arranged across the rear of the grate A to receive and heat air from the, ash-pit and deliver it to a combustion chamber C<1> lined with refractory blocks d, d , d<2>. At the rear of the combustion chamber are provided refractorv blocks E, Figs. 1 and 3, supported on slabs f resting on blocks F. Inclined passages e are provided in the blocks E to form sinuous passages for the combustion products when two or more blocks are arranged back to back. For large flues, the blocks E, which are. preferably of standard size, are separated by girder-shape blocks G, Fig. 9, built in between them and resting on the slabs f. A baffle of the form deecribed in Specification 209,359 may be arranged at the rear end of the flue.
Patent GB-578762-A (GB)
Title: Improvements in or relating to high frequency electron discharge devices
IPC: H01J25/52
Filed: 1940-08-06
Abstract: 578,762. Magnetrons. BROADWAY, L. F., and CORK, E. C. Aug. 6, 1940, No. 12639. [Classes 39 (i), 40 (iii) and 40 (v)] In a high-frequency electron discharge device such as a split anode magnetron with end plates 17, 18, metal bars or strips 21-25 are connected to points where undesired high-frequency potentials are liable to be set up ; each bar has an effective length equal to one quarter of the wavelength of the operating' frequency of the magnetron and stabilizes the high-frequency potentials. As shown, they are connected in pairs to the extremities of the cathode 10, to the end plates and to the plate 15 bonding the ends of the split anode. The .leads 19, 20 are connected to the ends of the anode parts, but may be attached along their lengths ; the seals for the transmission line may be made as described in Specification 572,981. The bars may be of any form such as coils : a single bar of half wavelength may be tapped in the centre or they may be any odd multiple of a quarter wave in length.
Patent GB-130174-A (GB)
Title: Improvements in or relating to Variable Speed Gears and Disengaging Couplings.
Inventor: GEE WILLIAM JOHN
IPC: F16H29/20
Filed: 1918-08-06
Abstract: 130,174. Gee, W. J. Aug, 6, 1918. Variable-speed gearing comprises a shaft 1 carrying an internal multiple screw or worm 2 of steep pitch driven by toothed segments 16, which are axially movable in radial slots 15 in a boss 14 secured to a shaft 7 in line with the shaft 1. The segments 16 have a sliding connexion with bars 19, which are connected by links 20 to the boss 14 so as to allow the segments 16 to be drawn inwards clear of the worm 2 with a parallel motion. Each seg. ment 16 becomes operative in turn for part of a revolution when it is thrust positively towards the left of Fig. 1. It is then drawn radially inwards, pulled axially to the right, and thrust out again. The speed is varied by altering the inclination of an annular non-revoluble cam 28. Axially movable blocks 31 carry rollers 33 engaging the cam 28 and transmit thrust to the segments 16 by way of adjustable blocks 35 and links 30. Each block 35 is automatically adjusted by means of a ' feeler tooth,' a linkage, and a wedge, from the preceding segment, so as to place its segment in position properly to engage the worm 2. Specification 115,857 is referred to.
Patent GB-355784-A (GB)
Title: Improvements in or relating to connectors for welding cables and welding heads
IPC: B23K11/30
Filed: 1930-04-25
Abstract: 355,784. Heating by electricity. BUDD MANUFACTURING CO., E. G., 25th Street, Philadelphia, U.S.A.-(Assignees of Paugh, J. J. ; of Budd Manufacturing Co., 25th Street, Philadelphia, U.S.A.) April 25, 1930, No. 12837. Convention date, April 29, 1929. [Class 39 (iii).] A conduit 21 enclosing a stranded electric cable 20 and serving to convey cooling fluid to a welding electrode 10 is attached to the electrode by a plug 12 having a straight passage 16 for the fluid. A pipe 17 is fitted into the plug and extending at one side into the cable end, and at the other side into the removable point 11 of the electrode. The plug is coned into the end 24 of the electrode and secured fluidtight by a union nut 26. The conduit 21 is secured to the plug by a band clip 32. A return pipe 29 for the fluid is provided. Reference has been directed by the Comptroller to Specifications 12505/88, [Class 38, Electricity, Regulating &c.], and 293,685, [Class 38 (i), Electric couplings &c.].
Patent GB-1447471-A (GB)
Title: 1,2,4-triazolidin-3-ones
IPC: C07D285/135
Filed: 1975-03-27
Abstract: Herbicidally active 1,2,4-triazolidin-3-ones of the following formula   <IMAGE> in which R<1> and R<2> are as defined in Claim 1, are prepared. These compounds are obtained by reacting a semicarbicide which carries the substituents R<1> and R<2> with formaldehyde at room temperature up to 50 DEG C, during which process cyclisation takes place. The compounds mentioned can be used in herbicides.
Patent GB-1508175-A (GB)
Title: Air-cooled reciprocating-piston internal combustion engin
IPC: F02F1/18
Filed: 1975-03-27
Abstract: 1508175 Air-cooled IC engines KLOCKNERHUMBOLDT-DEUTZ AG 27 March 1975 [1 April 1974] 12880/75 Heading F1B A finned cylinder 2 projecting into the crackcase 1, with the upper surface of the crank-case above the level of the top piston ring 6 when the piston is at bottom dead centre, has a portion within the crank-case surrounded by a part 5 of good thermal conductivity or by a space (12), Fig. 2 (not shown), for liquid coolant, e.g. engine lubricating oil. The part 5 may be shrunk on to the cylinder 2 or formed by compound casting and may be an aluminium casting also having the cooling fins and cast on a centrifugally cast liner (17), Fig. 3 (not shown). The coolant space (12), Fig. 2, receives oil from a crank-case duct (14) through a throttle (16) and discharges to the crank-case interior.
Patent GB-257006-A (GB)
Title: Improvements in incinerators for refuse
IPC: F23G5/16
Filed: 1925-05-18
Abstract: 257,006. Watson, G. May 18, 1925. Flue-dust and the like, collecting; doors; baffles; furnace fireplaces. - A refuse destructor comprises a pair of cells a communicating with a combustion chamber b<1> separated by a depending wall k from a dust-collecting chamber c, so that the gases passing from the combustion chamber are given an initial straight and unimpeded downward path to cause deposit of dust. Further the combustion products from the two cells meet head on and then flow first downwards and then upwards in planes at right angles to their first direction before escaping by the chimney n to the atmosphere. The cells a have side feeding and clinkering doors mounted by side hinges on a sloping face so as to remain closed by gravity and there may be a larger end feeding door. A pigeon-holed wall j controlled by a damper l stops the passage of paper. It may be placed in various alternative positions and the chimney may in addition, for the same purpose, have a perforated downward extension. As a further alternative there may be a paper and dustcollecting chamber below the two cells separated therefrom by a slotted partition.